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ENSO effects on marine meteorology of adjacent waters surrounding Taiwan

Abstract
In this study, the COADS¡]Comprehensive Ocean-Atmosphere Data Set¡^Long Marine Report Fixed Length Format¡]LMRF¡^ data from 1996 to 2002 are used to investigate the seasonal variations of the sea surface temperature ¡]SST¡^¡Bsea surface wind and sea surface heat flux and their relationship with the 1997/1998 ENSO event in the ocean surrounding Taiwan. It is found that the SST¡Bwind and heat flux variations in this area are mainly annual. In winters when the northeasterly wind prevails , the SST is low and the net heat flux has negative values. In summers the opposite is ture. The SST anomaly (SSTA) of the studied area lags behind that of the NINO 3.4 area for about 10 months. The wind anomaly of the studied area is of the same phase with the Southern Oscillation index. The surface latent heat flux of the studied area lags behind the outgoing longwave radiation anomaly of the NINO 3.4 area for about 4~5 months. Wind speed during the 1997/1998 winter and summer is weaker than that of the climatological value, while the SST is lower in winter and higher in summer. The latent heat flux is lower during the 1997/1998 ENSO episode. It is concluded that the ENSO event significantly affects the wind patterns of this area,and as a result in the SST and heat flux also change. Finally, in the oceans east of Taiwan where Kuroshio traverses through, the latent heat flux is markedly higher than that of other areas due to the higher values of SST and air-sea humidity difference. Both the wind speed and the air-sea humidity difference are important factors affecting the latent heat flux especially during the winters when the SST is lower.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0909105-115126
Date09 September 2005
CreatorsHuang, Yu-hwa
ContributorsRuo-shaen Tseng, Yu-huai Wang, Guan-yu Chen
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0909105-115126
Rightsunrestricted, Copyright information available at source archive

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